I have just purchased a SeaMaster Aqua-Terra in December. It is a great watch and is suppose to be waterproof to 500 ft yet just wearing it causes condensation under the crown. I have been wearing it 24/7 and don't know if that has any bearing on it. I had a Seiko that did the same thing a few years back. They said it was because I wear it 24/7. It is going back to the dealer but anyone else had a similar experience? Thanks, Paul